OA18886A - Document d'identification comportant un code-barres bidimensionnel. - Google Patents

Abstract

La présente invention concerne un document d'identification (12) comportant un support physique portant au moins une inscription alphabétique d'identification du porteur du document, et au moins un code-barres bidimensionnel (20) d'identification du porteur du document II comporte au moins deux codesbarres bidimensionnels (20) sur lesquels sont codées des parties complémentaires d'un même fichier d'identification (IFID) du porteur du document.

Description

Identification document with a two-dimensional barcode

The present invention relates to an identification document of the type comprising:

- a physical medium bearing at least one alphabetical inscription identifying the bearer of the document, and

- at least one two-dimensional barcode identifying the bearer of the document,

It is known to provide, on one face of identification documents, such as identity cards, driving licenses or passports, a bar code, in particular a two-dimensional bar code, such as a QR Code. This QR Code contains identifying data, such as biometric information or the person's marital status information.

Two-dimensional barcodes or matrix codes are usually square arrays of black and white dots.

The density of points depends on the amount of information to be stored.

To store a large amount of information, it is known to use a QR Code with a lot of dots.

The increase in the amount of information stored increases the hold of the square QR Code on the document and makes it all the more difficult to read.

The aim of the invention is to provide an identity document comprising a two-dimensional barcode for data storage which allows the coding of a very large volume of data while allowing easy readability of the identification document.

To this end, the invention relates to an identification document of the aforementioned type, characterized in that it comprises at least two two-dimensional bar codes on which are coded complementary parts of the same identification file of the carrier. of the document.

According to particular embodiments, the identification document has one or more of the following characteristics:

- the two-dimensional barcodes are aligned to form a rectangular area,

- two-dimensional bar codes are separated by blank marking spaces, with a width of between 1 and 5 mm,

- the two-dimensional barcodes are in number between 2 and 6,

- the data encoded in the two-dimensional barcodes are civil status information and biometric information, and

- the two two-dimensional barcodes are of identical formats.

The subject of the invention is also a process for manufacturing an identification document as defined above comprising the steps of:

- collect identifying information,

- encode these identification information on at least one two-dimensional barcode, and

- print the at least one two-dimensional barcode, characterized in that:

- after collecting the identification information, the step of aggregating the identification information into a single file,

- splitting the file into at least two complementary parts of size each compatible with coding on a single two-dimensional barcode,

- coding on a single two-dimensional barcode of the same format for each additional part, and

- printing at least two two-dimensional bar codes of identical formats on the same medium.

According to particular modes of implementation, the method comprises one or more of the following characteristics:

the step of aggregating the information into a single file comprises a step of forming a native file including the identification information and a step of encrypting the native file to form an encoded file, and the step of splitting comprises the step of cutting the encoded file.

The subject of the invention is also a method for reading an identification document as defined above comprising:

- reading each two-dimensional barcode,

- decoding of each two-dimensional barcode,

- the agglomeration of the decoded information in the at least two two-dimensional barcodes to form a single file, and

- extracting identifying information from the single file.

According to particular modes of implementation, the reading method comprises one or more of the following characteristics:

- during the step of agglomeration of the decoded information, a step of forming a single encrypted file grouping together the decoded information and a step of decryption of the single encrypted file to form a native identification file and the step of Credentials extraction is performed on the native credential file.

The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the drawings in which:

- Figure 1 is a view of the two sides placed side by side of the same identification document according to the invention;

- Figure 2 is a schematic view of an installation for manufacturing an identification document according to the invention;

- Figure 3 is a view of a flowchart of the data processing method during the manufacture of an identification document according to the invention;

- Figure 4 is a schematic view of an installation for reading an identification document according to the invention; and

- Figure 5 is a view of a flowchart of the identification method implemented by the installation of Figure 4.

In Figure 1 are illustrated the two faces 10A, 10B of the same identification document 12 forming for example a national identity card.

Card 12 has a rectangular support such as a sheet of cardboard or polymer. Preferably, this support is rectangular in shape.

One or more electronic chips with or without contact are integrated in this support. As a variant, no electronic chip is integrated into the holder.

Each of the two sides of the card is printed. The front face 10A includes, for example, a photograph 14 of the wearer as well as civil status information 16 written in block letters. This information is for example the name, the first name, the date of birth, the nationality of the bearer, etc.

The back of the card 10B contains other information about the holder such as his address 18. The address is indicated in block letters.

According to the invention, one of the faces of the card, and in particular the back 10B, comprises at least two two-dimensional bar codes 20 of the same formats arranged in a line side by side, thus covering a rectangular area 22. This area 22 s 'preferably extends parallel to one of the edges of the card, and in particular the longest edge of the card.

Each two-dimensional barcode 20 is square in shape. These codes are spaced at an interval 24, the width of which is between 1 and 5 mm and preferably substantially equal to 2 mm. This interval 24 forms a blank marking space.

Two-dimensional barcodes are aligned so that their contiguous sides extend parallel to each other and sides adjacent to contiguous sides extend in continuation of each other.

All QR Codes are oriented in the same way.

The length of one side of a two-dimensional barcode is between 1 and 3 cm.

In the embodiment shown, the number of dimensional bar codes is 4. It is preferably between 2 and 6.

Each two-dimensional barcode is for example a QR Code from Denso.

The QR Code preferably has a maximum capacity of 2953 bytes and contains 177 x 177 points. This QR Code, for example, meets the ISO / IEC18004 standard.

The information contained in these QR Codes is composed of civil status information, on the one hand, and biometric data, on the other hand, such as a photograph, 10 fingerprints, or one or two irises.

The installation 28 illustrated in FIG. 2 is suitable for the manufacture of identification documents according to the invention and more precisely for the constitution and printing of two-dimensional bar codes.

This installation 28 comprises a central information processing unit 30 formed, for example, of a microcomputer forming a terminal connected to a network 32. This terminal comprises a screen 34 and a keyboard 36 allowing the entry of information, in particular relating the civil identity of the person commonly referred to as “bearer” for whom the identification document is produced.

The terminal 30 is linked through the network 32 to a central database 20 38 suitable for storing for each person information relating to their civil status, as well as biometric information such as their photo, their fingerprints or their iris. This database also includes security information concerning this person and indicating, for example, whether he is wanted and / or whether he is prohibited from entering certain territories.

The terminal 30 is connected to readers of biometric information on the person such as a camera 40 allowing the taking of photographs or images of the iris as well as a scanner 42 capable of capturing a digital representation of the fingerprints of the person. the person.

Finally, the installation 28 comprises a printer 44 connected to the terminal 30 and capable of ensuring the printing, under its control, of several two-dimensional bar codes 20 aligned on an identification card 12.

The terminal 30 implements a set of programs for the control of the biometric readers 40, 42, for the coding and the storage of the civil status and biometric information in the base 38 and finally for the control of the printer 44 for 35 printing aligned two-dimensional barcodes.

These programs also ensure the collection, from the keypad 36, of civil status information relating to each person wishing an identification document.

All of these programs implement a process as illustrated in Figure 3.

In step 100, the person's civil status is collected by the terminal 30 by entering it on the keyboard 36.

A photo of the person is taken from the camera 40 and stored temporarily in the terminal 30. Likewise, several fingerprints, in particular for example four fingers at the rate of two per hand, are collected from the scanner 42.

At the end of the collection of civil status and biometric information, this information is stored in the database 38 in step 101 by transmission of information possibly reformatted by the terminal 30.

All of this information is organized in a CF | _D according to a predefined format containing the concatenated data of the civil status information and of the biometric information collected, to which are added a header and other technical data.

The file thus formed CF | ₀ is then encrypted during a step 104 in order to guarantee its integrity and also to guarantee its authenticity.

For this purpose, an asymmetric algorithm in particular of the RSA type is used. Such an algorithm is known per se and implements a private key which is stored in the installation 28, without being made available in the identification document or in the facilities for reading this identification document.

The RSA-type asymmetric algorithm used implements a private key of at least 1024 bits and preferably substantially equal to 1024 bits. The algorithm is such that all data is encoded with the RSA algorithm, without loss of capacity.

At the end of the encryption, the file thus obtained denoted F, _D is partitioned into four elements denoted Fid ¹ in step 106. Each elementary file F | _D 'is obtained by splitting the file F | _D into four sub-files of identical size whose concatenation gives the encrypted file F | _D.

In step 108, an item of scheduling information for the elementary files F | _D 'is added in one or more elementary files to allow their subsequent concatenation in the order of the initial partitioning.

For example, the partitioning element added at the beginning of each elementary file is a letter a, b, c ... following the lexicographic order and corresponding to the partitioning order of the elementary files.

Thus, a completed elementary file a + F | _D ¹ is obtained by concatenation of the letter a and the elementary file F _1D ¹ .

Likewise, a completed elementary file b + F _lD ² is obtained as a second file by adding the letter b at the start of the elementary file F | _D ² .

More generally, each completed elementary file is written in the form e, + F | _Hence E is a header corresponding to the rank i among a set of headers ordered {e e _{b 2} ..., ej ..., e _n} and F | _D 'is the i ^th elementary file obtained when partitioning the CF file | _D.

Advantageously, for all the identification documents of the same set of people, for example nationals of the same country, the scheduling information e, are identical for all the documents for bar codes comprising complementary parts F _1D 'of the same rank of the identification file corresponding to the document.

Each complementary elementary file ei + F | _D ′ is transformed into a graphic element according to the QR Code standard in step 110, that is to say that each completed elementary file erf-Ffo is transformed into a two-color matrix of dots.

In step 112, the printer 44 is controlled by the terminal 30 to ensure the printing of the two-dimensional codes aligned in the zone 22 of a blank of an identification document on which the other information has been or is previously printed. simultaneously or subsequently.

In Figure 4 is shown an installation 200 for identifying a bearer of an identification document.

This installation comprises, for example, a two-dimensional barcode reader 202. This reader is formed, for example, of a mobile telephone equipped with a camera and suitable reading software. This reader software is suitable for detecting several aligned two-dimensional codes and for ensuring individual reading of each of them.

The installation further comprises a terminal 204 connected to the database 38 as well as to the reading device 202, for example by a wireless connection of the WIFI 206 type.

A fingerprint scanner 210 is also connected to terminal 204.

The terminal 204 is able to compare the civil status and biometric information obtained by the reader 202 and to compare the latter with the information contained in the base 38 in order to provide the user of the terminal 204 with information on the bearer. of the identification document.

Programs implemented in reader 202 or in terminal 204 are used to implement the algorithm shown in Figure 5.

As a variant, the reader 202 is connected directly to the database 38 and comprises information processing means suitable for implementing the programs implemented in the terminal 204, which then does not exist.

Initially, and as illustrated in Figure 5, the reader 202 reads in step 302 all of the aligned two-dimensional bar codes.

In step 304, it ensures individualization of each two-dimensional barcode. This individualization is facilitated by the presence of white lines forming the intervals between each of the aligned bar codes.

For each bar code thus identified, the reader 202 determines the completed raw data ej + FiD ¹ contained in each two-dimensional bar code. In step 307, the raw data F | _D 'are isolated by deleting the scheduling e, located at the beginning and then in step 308, a reconstruction of the complete raw data is carried out, by associating each of the files% by concatenation in the order defined by the scheduling headers e, to reconstitute a file F | _D.

This file F | _D is transmitted to terminal 204 in the embodiment envisaged.

The computer of the terminal 204 ensures in step 310 the decryption of the file in order to restore the file CF, _D. then checks in step 312 the integrity of the file using an algorithm known per se.

In step 314, the terminal 204 extracts from the file F | _D the data contained therein by removing headers and other technical data.

In the foregoing, the term file can designate a data structure containing information handled in the processing stream without however being temporarily or permanently stored on a storage medium.

The marital status information, the photograph and the four fingerprints (or the number of fingerprints on them) are stored in terminal 204.

In step 316, the civil status information as well as the identity photograph are displayed on the screen of terminal 204.

In step 318, a connection is made to base 38 in order to collect security information on the person whose civil status has been revealed by the identification document. These security data are returned by the database 38 and made available on the screen of the terminal 204. This security information is, for example, information authorizing entry into the territory or, on the contrary, a prohibition identification. entry into a territory.

Simultaneously, an acquisition of the fingerprints of the bearer of the identification document is carried out by the reader 210 in step 320 and transmitted to the terminal 304. A comparison is carried out in the terminal 204 between the fingerprints taken and the fingerprints stored in the device. the identification document at step 322.

The result of this comparison as well as the security data transmitted by the database 38 are displayed in step 324 and made available to the user of the terminal so that the latter can apply the procedures for processing the bearer of the document. 'identification.

Claims (15)

9 CLAIMS 1. Identification document (12) comprising: - a physical medium bearing at least one alphabetical inscription identifying the holder of the document, and - a two-dimensional barcode (20) for identifying the holder of the document, characterized in that it comprises at least two two-dimensional barcodes (20), each according to a standard on which complementary parts (IFid) are coded d 'a single identification file (IF | _D ) of the document holder, the bar codes being readable individually and each decodable. 2. Document according to claim 1, characterized in that the two-dimensional bar codes (20) are aligned to form an area (22) of rectangular shape. 3. Document according to claim 1 or 2, characterized in that the two-dimensional bar codes (20) are separated by blank marking spaces (24), of width between 1 and 5 mm. 4. Document according to any one of the preceding claims, characterized in that the two-dimensional bar codes (20) are in number between 2 and 6. 5. Document according to any one of the preceding claims, characterized in that the data coded in the two-dimensional bar codes (20) are civil status information and biometric information. 6. Document according to any one of the preceding claims, characterized in that the two-dimensional bar codes (20) are of identical formats. 7. Document according to any one of the preceding claims, characterized in that each two-dimensional barcode comprises scheduling information (e,) and a part (IFid ¹ ) of the identification file, which scheduling information ( ei) are representative of the order of complementary parts (IFid) in the identification file (IFid). 8. Set of documents according to claim 7, characterized in that the scheduling information (e,) are identical for all the documents for 10 barcodes with complementary parts (F | _D ') of the same rank in the identification file corresponding to the document. 9. Method of producing an identification document comprising the steps of: - collect identification information, - encode this identification information on a two-dimensional barcode (20), - print the two-dimensional barcode (20) characterized in that it includes: after collecting the identification information, the step of aggregating the identification information into a single file (F | _D ), cutting the file (F _[D ) into at least two complementary parts (F | _D ' ) of size each compatible with coding on a single two-dimensional barcode, coding on a single two-dimensional barcode according to a standard of each complementary part (F | _D '), and printing of at least two barcodes two-dimensional (20) of identical formats on the same support, the bar codes being readable individually and each decodable. 10. Method according to claim 9, characterized in that the step of aggregating information into a single file (F | _D ) comprises a step of forming a native file (CF _1D ) containing the identification information and a step of encrypting the native file (CFid) to form an encoded file (Fid), and the cutting step comprises the step of cutting the encoded file (F, _D ). 11. Method according to claim 9 or 10, characterized in that it comprises, before the coding step, an addition of scheduling information (e _É ) to the part (IF | _D ') of the file d , which scheduling information (ei) is representative of the order of the complementary parts (IFid) in the identification file (IFjd), and the coding on a single two-dimensional barcode of each complementary part (IF | _D '), furthermore includes the coding on the two-dimensional bar code of the scheduling information (e,) added to the complementary part (F | _D ^f ), 12. Method for reading an identification document comprising at least two two-dimensional bar codes (20) that can be read individually and each decodable on the same support comprising: - reading each two-dimensional barcode (20); - decoding of each two-dimensional barcode (20); - the aggregation of the information decoded in the at least two two-dimensional bar codes to form a single file (F _(D ); and 5 - the extraction of identification information from the single file (F | _D ). 13. Method according to claim 12, characterized in that it comprises, during the agglomeration step of the decoded information, a step of forming a single encrypted file (F _iD ) grouping the decoded information and a step of file decryption 10 unique encrypted (F _{! D} ) to form a native identification file (CF _{! D} ) and the step of extracting the identification information is carried out on the native identification file (CF | _D ). 14. Method according to claim 12 or 13, characterized in that it comprises, after the decoding of each two-dimensional barcode, the identification in the information 15 decoded, scheduling information (ej and an additional part (ΙΡ, ο *) of an identification file (F, _D ), and in that the aggregation of decoded information includes concatenation complementary parts (IF | _D ') identified according to an order defined by the scheduling information (e.) to form the single file (F, _D ).